Dec 4, 2012 4:00am PST
degrees. >>> nasa's voyager one has made a another startling discovery, a magnetic highway at the edge of the solar system. the probe was launched 35 years ago and is about 11 billion miles from earth. scientists say the magnetic highway is the last layer between the solar system and interstellar space and could take two to three years to cross. on mars, curiosity may have found signs of life. scientists said on monday the rover found hints of carbon, an essential building block for life. the problem, though, scientists aren't sure where they carbon came from. they say it could have been from the red planet or could have come from comets or asteroids or could have been brought by the rover itself. >>> the twitterverse has a new member. the pope. starting next wednesday, pope benedict will send his first tweet. it is a verified account, i did check earlier. he'll tweet in eight different languages. the english version already has plrn 3 -- more than 325,000 followers. the vatican says the pope doesn't plan to follow anyone on twitter other than himself. that takes all the fun out of it.